The homepage or a page from the main menu carries noindex. That tells Google not to include exactly the pages visitors look for. On WordPress this is usually a forgotten 'discourage search engines' setting after a migration or a new site.
A homepage or a main menu page that is kept out of Google costs the site its most important traffic. It is a silent mistake: the site works for visitors, nothing looks broken, and the rankings disappear over the following weeks.
Snaglist checks the robots meta tag and the X-Robots-Tag header of every page. A page with noindex is reported here when it is the homepage (also of a language) or when it is linked from the header or navigation of at least half the pages. Login, account, cart and search pages are expected to have noindex and are listed under the informational check instead.
Snaglist reports this as an error. In the health score an error costs the whole page, so fix it first.
In the report for your client this appears under the heading "Your most important pages are kept out of Google". When everything is in order, the report says: "The homepage and the menu pages are open to Google".
Snaglist checks every page of your site, for this issue and all the others. Start for free, no credit card needed.
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